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Abstract

This study has been conducted to find out how
Turkish Seismic Code 2007 is effective in providing the Life Safety (LS) and
Performance Level (PL) of T shaped plan irregularities reinforced concrete
multi-story buildings; with special lateral loads bearing moment frame systems.
For this purpose, a set of 12 multi-story residential buildings: 3- rectangular
plans as reference and their respective 9- different T shaped plans of 3-, 6-
and 8- stories were considered in the North Anatolian Fault Zone (NAFZ) Turkey
and were designed based on the code. Then, a modal and a static non-linear
pushover analysis were conducted for all buildings. Base shear forces and roofs
displacement for each building were computed. Besides, the formation trend of
plastic hinges and their respective distribution in the entire buildings were
inspected for evaluating the seismic performances. Results show that for some
buildings the expected performance level which is LS has been overreached and
even in some cases buildings reach the collapse prevention level. Based on
this, it seems that the code provisions still require further upgrading to
create enough confidence in the civil engineering community.

Keywords

Pushover Analysis, RC Building, T Shaped Plans, Life Safety (LS)

References

[2] Hosseini M, Yaghoobi F and Vayeghan, "Design Verification of an Existing 8-Story Irregular Steel Building by 3-D Dynamic and Push-over Analyses," in Proceedings of the 12th World Conference on Earthquake Engineering (12WCEE), New Zealand, 2000.